A car moves horizontally with a speed of 3 ms–1. A glass wind screen is kept on the front side of the car. Rain drops strike the screen vertically. With the Velocity of 5 ms–1 Calculate the velocity of rain drops with respect to a ground.
(A) 6 ms–1
(B) 4 ms–1
(C) 3 ms–1
(D) 1 ms–1
Correct option: (B) 4 ms–1
Explanation:
car is moving horizontally with 3 m/ rain drop strikes vertically screen. Given is the velocity after striking is 5 m/ i.e. resultant velocity is 5 m/*
V rain drop ωrt ground = V = 52 – 32
V = 4 m/*
